[R] removing duplicated rows from a data.frame
Prof Brian D Ripley
ripley at stats.ox.ac.uk
Mon Nov 5 11:47:04 CET 2001
On Wed, 31 Oct 2001, Prof Brian Ripley wrote:
> On Wed, 31 Oct 2001, Liaw, Andy wrote:
> > Should one of the suggestion be implemented as the unique method for
> > data.frame? Or maybe uniquerows.data.frame? Just a thought... This is
> > probably nearly a FAQ.
> Yes. I'd noted earler that S4 has unique.data.frame and
> duplicated.data.frame via a variant on the paste method.
> Will add.
Now done for R-devel.
Brian D. Ripley, ripley at stats.ox.ac.uk
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272860 (secr)
Oxford OX1 3TG, UK Fax: +44 1865 272595
r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send "info", "help", or "[un]subscribe"
(in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch
More information about the R-help